Sorry but....

Maybe it's a stupid question but....'d always wished to play wings on GBA: there is any way to play it on NDS using an R4i? I've just downloaded the rom, but it doesn't work, so I suppose I'd need an emulator, probably. Can you help me out?

Well...are you using an original DS, DS Light, or DSi?I'm assuming NDS/NDSL.If so, then you need a GBA Slot 2 card called the EZ Flash 3-in-1.
You can get it from http://realhotstuff.com/ or from another site that carries them.
The original model for the DS Phat is hard to come by.You can't directly play GBA roms off of any flashcart that can play NDS yet.
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Ok thanx alot! I'll take a gba slot card then!!

Until the SuperCard DSTWO is released, you'll need a slot-2 card -like the SuperCard SD- to play GBA ROMs. Or if you desire an emulator, Visual Boy Advance and/or no$gba work well.

Not possible, sorry.